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How about an 813? [message #10942 is a reply to message #10931]

Tue, 08 February 2005 20:53

PakProtector
Messages: 935
Registered: May 2009

Illuminati (2nd Degree)

We'd need a slightly special OPT, for running E-Linear, say 20 and 30% taps on the plate winding. Pentode input valve, rigged as a pentode with a super g2 supply, say a 12BY7 for the 813, or a faux pentode made from a pair of 5687 sections ( a.k.a. cascode ).

Say 700V B+, 6k/120 mA OPT and we're off to the races.

an 850-0-850@ 200 mA, 10 amps of 2.5 volts for the pair of 866's plus 10v/5A for the 813 filament and we're off to the races. don't forget about a good PS choke and some 440vac motor-runs.
regards,
Douglas

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[Message index]

		schematic By: Manualblock on Fri, 04 February 2005 17:33
		Re: schematic By: Wayne Parham on Sat, 05 February 2005 08:20
		Re: schematic By: Manualblock on Sun, 06 February 2005 09:32
		Re: schematic By: Wayne Parham on Sun, 06 February 2005 09:50
		Re: schematic By: Manualblock on Sun, 06 February 2005 12:49
		Re: schematic By: Wayne Parham on Sun, 06 February 2005 13:44
		OPTs By: Damir on Sun, 06 February 2005 15:16
		Re: OPTs By: Wayne Parham on Sun, 06 February 2005 15:30
		Re: OPTs By: Damir on Mon, 07 February 2005 05:39
		Re: OPTs By: Manualblock on Mon, 07 February 2005 07:15
		211 SE By: Wayne Parham on Mon, 07 February 2005 09:11
		How about an 813? By: PakProtector on Tue, 08 February 2005 20:53
		Re: How about an 813? By: Manualblock on Wed, 09 February 2005 07:28
		Re: How about an 813? By: PakProtector on Wed, 09 February 2005 07:42
		Re: schematic By: GarMan on Wed, 09 February 2005 10:02
		SE opt's By: PakProtector on Wed, 09 February 2005 17:11
		Re: SE opt's By: Manualblock on Thu, 10 February 2005 10:10

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